The Reference 330M is the finest amplifier Audio Research has created, the culmination of more than fifty years of vacuum-tube design. Its all-tube signal path runs from an ECC83 input through six KT170 output tubes, with tube regulation in the power supply, delivering 330 watts with the delicacy usually associated with low-power amplifiers. Auto-bias holds the output stage in constant calibration, output tube life is rated at 3,000 hours, and the fully balanced design also accepts single-ended sources.
Specifications
Control
12V triggers, RS-232 remote control
Inputs
Balanced XLR and single-ended
Output taps
4 and 8 ohms
Power output
330 watts
Tube biasing
Auto-bias
Tube complement
Six KT170 output; one ECC83 and one 6H30 input; one 6550 and one 6H30 power supply
Weight
101 lbs
Call or visit the showroom about availability. Contact our team for pricing, a demonstration, or system design — get in touch.
